Propeller.



J. F. WOGDYARD.

PROPELLER. APPLIDATION FILED FEB. 20, 1912. BENBWED HAY 4. 191.4.

Mmmm July M, i914.

2 SHEETS-SHEET 1.

nwe/mfr Maar/#argv J. F. WOODYARD.

PBOPELLER.

APPLIOATION FILED PERSO, 1912` ILEHBWED MAY 18M. i; l @39855, Mmmm@ July M, 914.

s mums-emmer a.

vHat

JLCIB4 E. WOODYARD, OF PARHERSBURG, 'WEST VIRGINIA.

ROPELLER.

Specification of Letters Patent.

llatcnt'ed July tet, llild.

P.tllpplicatum tiled February 20, 191%, Serial 1 o. 678,761. Renewed muy a, 1914. Serial No. 335,355;

To all iff/mm 'it may concern: .y

Be it known that I, Jason I?. Wooni'aan. a citizen ot' the United States, and a resident of Parkersburg, in the county of `Wood and State of West Virginia, have invented certain new and useful. Improvements in Propellers, of which the following is a speciication. f v

This invention is an improvement in propellers adapted for use in water or an' as Well las for embodiment in windmills and eleetricfans; and the invention consists in certain novel constructions and: combinations of parts as will be `hereinafter de scribed and claimed.

. In the drawings Figure l is a perspective View from the rear, of a propeller embody ing my invention. Fig. 2 is a rear elevation of the propeller wheel, and I*1 ig. 2 is an end View of a propeller having a plurality of bands. Fig. 3 is a section on about line 3-3 of-Fig. Fig. 4 is a section on about line 4-4 of Fig. 2. Fig. 5 is a section through one of the buckets on about line --5 of Fi 2.

In carrying out the invention, I employ a hub A and a band or bands lB spaced from the hub and concentric therewith.

Blades C, C and I), D extend betweenrthc hub and band and are of the special construction more fully described hereinafter. At theirl rear edges the blades C and l) te. minate at their inner and outer ends in about the same plane and the rear edges of said blades C andlD connect with the band Bat the rear edge of the latter. such rear edge of the band B lying in approximately a plane. The blades C are relatively wider than the blades I) and ina-v for such reason be termed the main blades while the blades Dwmay be termed the supplen'lental blades. The blades l) are at tli. "1' inner ends, of about one-half the width the in ner ends of the blades C, while at tligeir outer ends the blades D are also considerablynarrower than the blades C although the l'lbu'les D like the blades vC gradually incliease in Width toward their outer ends. It lwilbbe noticed that both the blades (I and D curve longitudinally and laterally lLiving astraight line running quartering from the cutting edge of the blade, the band holding the water making it takel the grade, thus eausn ing a perfect' end thrust and also causing' less slip than is ordinarily experienced. l'l`he lcurve gives t-he cutting edge a rounded seooping shape taking on a greater volume of water or air, giving more force to the wheel and making the grade easier on the `front halfand heavier to the rear halt.

On the outer side of the band I3, I provide buckets E which incline rearwardly from their front ends E' toward their rear ends -l-l and these buckets at their outer edges lE3 gradually widen'toward the center or toward a point midway between the ends E and E2 as best shown in Fig. l of the drawings. By thus Widening the bucket-midway between its ends, the lips so formed at E will operate to catch more water from the outside as the wheel revolves, thus diving),` greater power or end thrust to .the Wheel. rl'he buckets l are in cross-section curved practically uniform from end to end and gather the water with a drawing,r cutting edge at their front ends. The lip E?, as the wheel revolves, gathers the Water into the buckets by the draw o1' shearing cut of lip E as shown in Fig. 1.

It will be noticed especially from a comparison of F i2 and 5 that the blades C at the front edges oli their outer ends project slightly in advance of the front ends of the buckets E, the buckets IC being thus set slightly bach from the outer ends 01E the blades C for the purpose of catching any water that may be disturbed by the two wide or main blades C and the rim at the point where the said blades and band come together.

v The band is narrow land cut away at the back of blades (l and I) and buckets` E and cut away at its front edge at l between the spaced apart bllelets'lil and the two narrow or siuipleniental blades I) it will be nbticed. are ser back lrrzi'u the firent edgevot thelbanrh see Fig. Si. This cutting away of the band at l" and the setting buck of ythe narrow blades provides i'or catching` all the water at the front of the blades causing therefor aisne tion or draw which witll the narrow blades nlalres a better clearance and forces the watery lo the rear increasing the thrust of the wheel.

Manifestly the wheel may be used as a surface propeller when twin wheels are used working reversely., or submerged twin wheels.

In large wheels two or three bands mav be irefl as will be undcrstoodl from Fig: 2*". 'these bands besides holding the water'and sev making it take thev grade, sti'en the blades preventing their-*quiver and unete-udinese, thereby giving better results.

.I claim.: 1. A Wheel, substantially es herein described, comprising a hub, a band concentrie with and specedfroin the hub, a; series volf main blades between the 'hub lend bend and eseries of supplemental.blades between the hub and band and alternating with the mein blades, the supplemental blades being of less Width than the main blades and terminating at their rear edges in approximately the'same plane with the corresponding edges of the rear half of main blades, the front edges of the supplemental blades being set back relatively corresponding to the rear half of the main blades, e series of buckets outside of the bend and inelinng from their front to their reer ends, the enter 'for the purposes set'ferth.

meeste v edges of the seid biielets beingl widened midvvay between their ends and the band being narrowed or eut away et its front edge between the adjacent buckets with the front edge of the mein blades at the outer ends spectiw: buckets, ell ysubstantially as and v l2. A Wheel substantially as described, comprising a hub, a band, blades between 4the hub and band and buckets on the outer side of the bend, theblades at the outer ends of their front' edges projecting in advance ofl their respective buckets, substantielly es, setA forth.

JACOB F. Woonmen v Witnesses:

P., M. IRELAND, A. D. IRELAND.

425 thereof projecting in advance 'of vtheir re- 

